| Volume | Book | Years | Book Title |
| I | 1 | to 509 BC | The period anterior to the abolition of the monarchy |
| I | 2 | 509–265 BC | From the abolition of the monarchy in Rome to the union of Italy |
| II | 3 | 265–146 BC | From the union of Italy to the subjugation of Carthage and of the Greek states |
| III | 4 | 146–44 BC | The revolution |
| III | 5 | 44–30 BC | The establishment of the military monarchy |
| IV | 6–7 | 44 BC–AD 418 | (Published separately in 1992 as A History of Rome under the Emperors, reconstructed from lecture notes) |
| V | 8 | 44 BC–AD 305 | The provinces and people from Caesar to Diocletian. (Published separately as The Provinces of the Roman Empire from Caesar to Diocletian) |